Cortisol
Cortisol is your main stress hormone. It peaks shortly after you wake up and falls through the day, helping control blood sugar, blood pressure and your response to stress.
Your reading
This app uses 5–25 mcg/dL for a morning sample. Because cortisol swings so much during the day, the time of the test matters as much as the number. A single result rarely diagnoses anything; doctors use special tests when they suspect a real problem.
What may help
- —A steady sleep schedule: cortisol follows your body clock
- —Morning daylight and regular exercise
- —Managing chronic stress, with or without help
When to talk to a doctor
If morning cortisol is clearly outside the range, or you have signs like unexplained weight gain with high blood pressure, or deep fatigue with dizziness and weight loss.
Common questions
What is Cortisol?
Cortisol is your main stress hormone. It peaks shortly after you wake up and falls through the day, helping control blood sugar, blood pressure and your response to stress.
What is a normal Cortisol level?
Daygo uses 5–25 mcg/dL (morning) as the reference range. This app uses 5–25 mcg/dL for a morning sample. Because cortisol swings so much during the day, the time of the test matters as much as the number. A single result rarely diagnoses anything; doctors use special tests when they suspect a real problem.
How can I improve my Cortisol?
A steady sleep schedule: cortisol follows your body clock. Morning daylight and regular exercise. Managing chronic stress, with or without help.
When should I see a doctor about Cortisol?
If morning cortisol is clearly outside the range, or you have signs like unexplained weight gain with high blood pressure, or deep fatigue with dizziness and weight loss.
Source: MedlinePlus (NIH). Reference ranges are standard adult intervals — your own lab may report a different range for your age, sex, or method. This isn't medical advice; always go by the range on your actual results and talk to a clinician about anything that concerns you.